"You need a bad girl to blow your mind," singer Demi Lovato powered through on "Bang Bang" during Jessie J's set last night (Dec. 3) at the 99.7 Triple Ho Show in San Jose, Calif. After powerhouse Jessie J launched into the Hot 100 smash, it was to the crowd's unbridled delight when Lovato (who also performed her own fleshed-out set) was the special guest. Ariana Grande, you might want hold onto those hair extensions.
During Lovato's performance, she invited Bea Miller (a finalist on The X-Factor's second season) for a rockin' rendition of "Give Your Heart A Break" (video below), from 2011's Unbroken album. Of course, the pop singer also go into the holiday spirit, performing "Have Yourself A Merry Little Christmas." Lovato also sang "Skyscraper," "My Love Is Like A Star," "Heart Attack" and "Neon Lights."
Charli XCX, Nick Jonas and 5 Seconds of Summer were also on the bill.
@BeaMiller you are amazing, and I'm so proud of you. So happy we got to really hang and then perform together 💗💗💗 love you lil sis 😘😘😊— Demi Lovato (@ddlovato) December 4, 2014
[PHOTO CREDIT: Christopher Polk/John Parra/Getty]